Electronic device for transmitting rf signal, operation method thereof, and storage medium

Abstract

An electronic device may include: a first power control circuit configured to supply a first supply voltage which is based on transmission power; a first power amplifier configured to amplify a first RF signal, based on the first supply voltage; a battery configured to provide at least one reference voltage; a plurality of capacitor banks including a first capacitor bank and a second capacitor bank; and a switch including a plurality of nodes and configured to selectively connect a node corresponding to one of the plurality of capacitor banks to a node corresponding to the first power control circuit based on the first supply voltage.

What is claimed is: 
     
         1 . An electronic device comprising:
 a first power control circuit configured to supply a first supply voltage which is based on transmission power;   a first power amplifier configured to amplify a first radio frequency (RF) signal, based on the first supply voltage;   a battery configured to provide at least one reference voltage;   a plurality of capacitor banks comprising a first capacitor bank and a second capacitor bank; and   a switch comprising a plurality of nodes and configured to selectively connect a node corresponding to one of the plurality of capacitor banks, among the plurality of nodes, to a node corresponding to the first power control circuit, among the plurality of nodes, based on the first supply voltage, wherein the switch is further configured to:
 based on the first supply voltage being in a first reference range, supply the first supply voltage to the first capacitor bank by connecting the node corresponding to the first power control circuit to a node corresponding to the first capacitor bank among the plurality of nodes; and 
 based on the first supply voltage being in a second reference range, supply the first supply voltage to the second capacitor bank by connecting the node corresponding to the first power control circuit to a node corresponding to the second capacitor bank among the plurality of nodes, and supply a first reference voltage to the first capacitor bank by connecting a node corresponding to the battery, among the plurality of nodes, to the node corresponding to the first capacitor bank. 
   
     
     
         2 . The electronic device of  claim 1 , further comprising:
 an antenna,   wherein the first power amplifier is further configured to provide the amplified first RF signal to the antenna for communication between the electronic device and an external device, and   wherein the first power control circuit is further configured to supply the first supply voltage which is based on a level of the transmission power for the communication.   
     
     
         3 . The electronic device of  claim 1 , wherein the first reference range comprises voltages greater than or equal to the first reference voltage, and
 wherein the second reference range comprises voltages less than the first reference voltage.   
     
     
         4 . The electronic device of  claim 3 , wherein a capacitance of the second capacitor bank is smaller than a capacitance of the first capacitor bank. 
     
     
         5 . The electronic device of  claim 1 , further comprising:
 a first resistance divider electrically connected to the battery;   a second resistance divider electrically connected to the battery; and   a third resistance divider electrically connected to the battery,   wherein the plurality of capacitor banks further comprises a third capacitor bank and a fourth capacitor bank, and   wherein the switch is further configured to:
 selectively connect the node corresponding to the second capacitor bank to a node corresponding to the first resistance divider, among the plurality of nodes; 
 selectively connect a node corresponding to the third capacitor bank, among the plurality of nodes, to a node corresponding to the second resistance divider, among the plurality of nodes; and 
 selectively connect a node corresponding to the fourth capacitor bank, among the plurality of nodes, to a node corresponding to the third resistance divider, among the plurality of nodes. 
   
     
     
         6 . The electronic device of  claim 5 , wherein the first reference range comprises voltages greater than or equal to the first reference voltage,
 wherein the second reference range comprises voltages less than the first reference voltage and greater than or equal to a second reference voltage,   wherein a third reference range comprises voltages less than the second reference voltage and greater than or equal to a third reference voltage, and   wherein a fourth reference range comprises voltages less than the third reference voltage, and   wherein the switch is further configured to:
 based on the first supply voltage being in the first reference range, supply the first supply voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the first power control circuit, supply the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supply the third reference voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supply a fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider; 
 based on the first supply voltage being in the second reference range, supply the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supply the first supply voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first power control circuit, supply the third reference voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supply the fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider; 
 based on the first supply voltage being in the third reference range, supply the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supply the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supply the first supply voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the first power control circuit, and supply the fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider; and 
 based on the first supply voltage being in the fourth reference range, supply the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supply the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supply the first supply voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supply the first supply voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the first power control circuit. 
   
     
     
         7 . The electronic device of  claim 5 , wherein the first resistance divider comprises a first resistor and a second resistor, and
 wherein the second capacitor bank is connectable in parallel to the second resistor based on an operation of the switch.   
     
     
         8 . The electronic device of  claim 5 , wherein the switch comprises a first switch, a second switch, a third switch, and a fourth switch,
 wherein the first switch is further configured to:
 selectively connect the node corresponding to the first capacitor bank to the node corresponding to the battery; and 
 selectively connect the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, 
   wherein the second switch is configured to:
 selectively connect the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider; and 
 selectively connect the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider, 
   wherein the third switch is configured to:
 selectively connect the node corresponding to the first capacitor bank to the fourth switch; 
 selectively connect the node corresponding to the second capacitor bank to the fourth switch; 
 selectively connect the node corresponding to the third capacitor bank to the fourth switch; and 
 selectively connect the node corresponding to the fourth capacitor bank to the fourth switch, and 
   wherein the fourth switch is configured to:
 selectively connect the node corresponding to the first power control circuit to a first node or a second node of the third switch. 
   
     
     
         9 . The electronic device of  claim 3 , further comprising:
 a second power control circuit configured to supply a second supply voltage which is based on the transmission power; and   a second power amplifier configured to amplify a second RF signal, based on the second supply voltage,   wherein the switch is further configured to selectively connect the node corresponding to one of the plurality of capacitor banks to a node corresponding to the second power control circuit, among the plurality of nodes, based on the second supply voltage.   
     
     
         10 . A method for operating an electronic device, the method comprising:
 adjusting a first supply voltage supplied from a first power control circuit to a first power amplifier based on transmission power;   amplifying a first radio frequency (RF) signal based on the first supply voltage;   based on the first supply voltage being in a first reference range, supplying the first supply voltage to a first capacitor bank by connecting a node corresponding to the first power control circuit, among a plurality of nodes of a switch, to a node corresponding to the first capacitor bank, among the plurality of nodes; and   based on the first supply voltage being in a second reference range, supplying the first supply voltage to a second capacitor bank by connecting the node corresponding to the first power control circuit to a node corresponding to the second capacitor bank, among the plurality of nodes, and supplying a first reference voltage to the first capacitor bank by connecting a node corresponding to a battery, among the plurality of nodes, to the node corresponding to the first capacitor bank.   
     
     
         11 . The method of  claim 10 , wherein the amplified first RF signal is provided from the first power amplifier to an antenna for communication between the electronic device and an external device, and
 wherein the first supply voltage is adjusted based on a level of the transmission power for the communication.   
     
     
         12 . The method of  claim 10 , wherein the first reference range comprises voltages greater than or equal to the first reference voltage, and
 wherein the second reference range comprises voltages less than the first reference voltage.   
     
     
         13 . The method of  claim 12 , wherein a capacitance of the second capacitor bank is smaller than a capacitance of the first capacitor bank. 
     
     
         14 . The method of  claim 11 , further comprising:
 selectively connecting the node corresponding to the second capacitor bank to a node corresponding to a first resistance divider of the electronic device, among the plurality of nodes;   selectively connecting a node corresponding to a third capacitor bank of the electronic device, among the plurality of nodes, to a node corresponding to a second resistance divider of the electronic device, among the plurality of nodes; and   selectively connecting a node corresponding to a fourth capacitor bank of the electronic device to a node corresponding to a third resistance divider of the electronic device,   wherein the first resistance divider is electrically connected to the battery,   wherein the second resistance divider is electrically connected to the battery, and   wherein the third resistance divider is electrically connected to the battery.   
     
     
         15 . A computer-readable non-transitory storage medium storing instructions that, when executed by at least one processor of an electronic device, cause the electronic device to perform at least one operation comprising:
 adjusting a first supply voltage supplied from a first power control circuit to a first power amplifier based on transmission power;   amplifying a first radio frequency (RF) signal based on the first supply voltage;   based on the first supply voltage being in a first reference range, supplying the first supply voltage to a first capacitor bank by connecting a node corresponding to the first power control circuit, among a plurality of nodes of a switch, to a node corresponding to the first capacitor bank, among the plurality of nodes; and   based on the first supply voltage being in a second reference range, supplying the first supply voltage to a second capacitor bank by connecting the node corresponding to the first power control circuit to a node corresponding to the second capacitor bank, among the plurality of nodes, and supplying a first reference voltage to the first capacitor bank by connecting a node corresponding to a battery, among the plurality of nodes, to the node corresponding to the first capacitor bank.   
     
     
         16 . The computer-readable non-transitory storage medium of  claim 15 , wherein the amplified first RF signal is provided from the first power amplifier to an antenna for communication between the electronic device and an external device, and
 wherein the first supply voltage is adjusted based on a level of the transmission power for the communication.   
     
     
         17 . The computer-readable non-transitory storage medium of  claim 15 , wherein the first reference range comprises voltages greater than or equal to the first reference voltage,
 wherein the second reference range comprises voltages less than the first reference voltage.   
     
     
         18 . The computer-readable non-transitory storage medium of  claim 15 , wherein a capacitance of the second capacitor bank is smaller than a capacitance of the first capacitor bank. 
     
     
         19 . The computer-readable non-transitory storage medium of  claim 15 , wherein the at least one operation further comprise:
 selectively connecting the node corresponding to the second capacitor bank to a node corresponding to a first resistance divider of the electronic device, among the plurality of nodes;   selectively connecting a node corresponding to a third capacitor bank of the electronic device, among the plurality of nodes, to a node corresponding to a second resistance divider of the electronic device, among the plurality of nodes; and   selectively connecting a node corresponding to a fourth capacitor bank of the electronic device, among the plurality of nodes, to a node corresponding to a third resistance divider of the electronic device, among the plurality of nodes,   wherein the first resistance divider is electrically connected to the battery,   wherein the second resistance divider is electrically connected to the battery, and   wherein the third resistance divider is electrically connected to the battery.   
     
     
         20 . The computer-readable non-transitory storage medium of  claim 19 , wherein the first reference range comprises voltages greater than or equal to the first reference voltage,
 wherein the second reference range comprises voltages less than the first reference voltage and greater than or equal to a second reference voltage,   wherein a third reference range comprises voltages less than the second reference voltage and greater than or equal to a third reference voltage, and   wherein a fourth reference range comprises voltages less than the third reference voltage, and   wherein the at least one operation further comprise:
 based on the first supply voltage being in the first reference range, supplying the first supply voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the first power control circuit, supplying the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supplying the third reference voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supplying a fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider, 
 based on the first supply voltage being in the second reference range, supplying the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supplying the first supply voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first power control circuit, supplying the third reference voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supplying the fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider, 
 based on the first supply voltage being in the third reference range, supplying the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supplying the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supplying the first supply voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the first power control circuit, and supplying the fourth reference voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the third resistance divider, and 
 based on the first supply voltage being in the fourth reference range, supplying the first reference voltage to the first capacitor bank by connecting the node corresponding to the first capacitor bank to the node corresponding to the battery, supplying the second reference voltage to the second capacitor bank by connecting the node corresponding to the second capacitor bank to the node corresponding to the first resistance divider, supplying the first supply voltage to the third capacitor bank by connecting the node corresponding to the third capacitor bank to the node corresponding to the second resistance divider, and supplying the first supply voltage to the fourth capacitor bank by connecting the node corresponding to the fourth capacitor bank to the node corresponding to the first power control circuit.